Research, Research, Research
I am in exactly the same boat you're in. I just got a new to me Garand. It was rebuilt, spec'ed, reparkerized,new stock, new barrel and reassembled by "The Garand Guy". I have already taken a bull moose with it a few weeks ago using Rem Bronze Tip 180 gr factory ammo. The manual I got with the rifle is from the CMP and "it says 180gr factory loads may be used", max wt. Before I went hunting, and even fired off a round I looked around and asked around on the net. Google is your friend and the search feature here.
Check out the CMP fourms and Fulton Armory has info on, or not, reloading.
http://www.fulton-armory.com/
-I installed a "Shuster Adjustable Gas Plug" from Brownells, it replaces the gas cylinder lock screw. I have the plug adjusted for the above load.
- I got "
The M1 garand: Owner's Guide" by Scott Duff
Good genral knowledge about running a Garand.
- I got a cartridge length gauge, Slam fire prevention
- I full length resize my brass then run them through the cartridge length gauge, Slam fire prevention
- I use not soft primers, Slam fire prevention
Read your reloading manuals on loading for the Garand. The powder for the Garand is IMR4895 and powders that work well are between IMR4064 and 4895 in burn rates/preassure curves.(
Loadbooks and the newest
Sierra manual)
Just realize there are special caveats that must be taken into consideration when reloading for gas guns. Begin at the starting loads and work your way up. Be safe and have fun.
It is fun!